org.openrdf.sail.rdbms.algebra
Class SqlCase

java.lang.Object
  org.openrdf.query.algebra.QueryModelNodeBase
      org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase
          org.openrdf.sail.rdbms.algebra.SqlCase

All Implemented Interfaces:

Cloneable, QueryModelNode, SqlExpr

public class SqlCase
extends RdbmsQueryModelNodeBase
implements SqlExpr

The SQL CASE WHEN THEN END expression.

Author:

James Leigh

Nested Class Summary

class

SqlCase.Entry

Constructor Summary

SqlCase()

Method Summary

SqlCase	clone() Returns a (deep) clone of this query model node.
boolean	equals(Object obj)
List<SqlCase.Entry>	getEntries()
int	hashCode()
void	removeEntry(SqlCase.Entry e)
void	replaceChildNode(QueryModelNode current, QueryModelNode replacement) Default implementation of QueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode) that throws an IllegalArgumentException indicating that current is not a child node of this node.
void	truncateEntries(SqlCase.Entry e)
<X extends Exception> void	visit(RdbmsQueryModelVisitorBase<X> visitor)
<X extends Exception> void	visitChildren(QueryModelVisitor<X> visitor) Dummy implementation of QueryModelNode.visitChildren(org.openrdf.query.algebra.QueryModelVisitor) that does nothing.
void	when(SqlExpr condition, SqlExpr expr)

Methods inherited from class org.openrdf.sail.rdbms.algebra.base.RdbmsQueryModelNodeBase

visit

Methods inherited from class org.openrdf.query.algebra.QueryModelNodeBase

getParentNode, getSignature, replaceWith, setParentNode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.openrdf.query.algebra.QueryModelNode

getParentNode, getSignature, replaceWith, setParentNode, toString, visit

Constructor Detail

SqlCase

public SqlCase()

Method Detail

when

public void when(SqlExpr condition,
                 SqlExpr expr)

getEntries

public List<SqlCase.Entry> getEntries()

visitChildren

public <X extends Exception> void visitChildren(QueryModelVisitor<X> visitor)
                   throws X extends Exception

Description copied from class: QueryModelNodeBase

Dummy implementation of QueryModelNode.visitChildren(org.openrdf.query.algebra.QueryModelVisitor) that does nothing. Subclasses should override this method when they have child nodes.

Specified by:

visitChildren in interface QueryModelNode

Overrides:

visitChildren in class QueryModelNodeBase

Throws:

X extends Exception

replaceChildNode

public void replaceChildNode(QueryModelNode current,
                             QueryModelNode replacement)

Description copied from class: QueryModelNodeBase

Default implementation of QueryModelNode.replaceChildNode(QueryModelNode, QueryModelNode) that throws an IllegalArgumentException indicating that current is not a child node of this node.

Specified by:

replaceChildNode in interface QueryModelNode

Overrides:

replaceChildNode in class QueryModelNodeBase

Parameters:

current - The current child node.

replacement - The new child node.

clone

public SqlCase clone()

Description copied from interface: QueryModelNode

Returns a (deep) clone of this query model node. This method recursively clones the entire node tree, starting from this nodes.

Specified by:

clone in interface QueryModelNode

Specified by:

clone in interface SqlExpr

Overrides:

clone in class QueryModelNodeBase

Returns:

A deep clone of this query model node.

visit

public <X extends Exception> void visit(RdbmsQueryModelVisitorBase<X> visitor)
           throws X extends Exception

Specified by:

visit in class RdbmsQueryModelNodeBase

Throws:

X extends Exception

removeEntry

public void removeEntry(SqlCase.Entry e)

truncateEntries

public void truncateEntries(SqlCase.Entry e)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object